How tall is Bretman Rock? This image appears in the gallery:Bretman Rock: 25 facts about the YouTuber you probably never knew 3. How tall is Bretman Rock? Bretman Rock is 5 feet and 8 inches tall (1.76m). [Jon Kopaloff/FilmMagic] 25 images See the full gallery: Bretman Rock: 25 facts about the YouTuber you probably never knew